ride herd

I don't want to have to ride herd on both of you.

Well, the captain doesn't need a nice guy riding herd on him.

"I just hope he can ride herd on these wild men."

And I was going to have to ride herd on him all summer.

He'd been the one stuck with riding herd on them over the last several years, after all.

It is riding herd on its own vendors, for example.

"I wasn't trying to ride herd on any particular horse," Day said.

And right now, he simply could not afford to spend any more time riding herd on them.

"Maybe I better go along and ride herd on him."

He also has your job of riding herd on the stock.